Portion of a shoe midsole



FIG. 1 is a perspective view of a portion of a shoe midsole showing my new design;

FIG. 2 is a side elevational view of one side thereof; and,

FIG. 3 is a bottom perspective view thereof.

The uneven broken line immediately adjacent to the shaded area represents an unclaimed boundary of the design. The eneven broken line showing of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. The shading technique used on the raised elements depicts a contrast of appearance relative to the surrounding portions of the claimed design and does not designate a particular material, texture or color. 

The ornamental design for a portion of a shoe midsole, as shown and described. 